Matsutake Mushrooms
These mushrooms are so rare that their price now reaches as high as $600 for a single kilogram. Matsutake mushrooms are native to Japan, but they also grow in several different Asian countries. However, their number has decreased significantly due to the effects of insects and invasive trees finding their way into the shaded areas in which the mushrooms grow. Because there is no way to cultivate Matsutake mushrooms, there’s a high chance they could disappear altogether in the future.